package net.yla.smartbus.core.annotation;

/**
 * @author Handy Wong
 * @date 2020/8/22 9:59
 * 自定义null类,无实际意义
 */
public class Empty {

    private static Empty instance;

    private Empty() {
    }

    public static Empty getInstance() {
        if (instance == null) {
                instance = new Empty();
        }
        return instance;
    }

}
